<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

    <el-card>
      <div id="main" style="width: 100%; height: 400px"></div>
    </el-card>
  </div>
</template>

<script>
// 导入echarts
import * as echarts from "echarts";
import uri from "../../config/uri"
import _ from "lodash"
export default {
  data() {
    return {
        // 需要合并的数据
        options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    };
  },
  created(){
     
  },
  // echarts在mounted中初始化实例，mounted生命周期函数dom已挂在完成
 async mounted() {
  // 基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById("main"));
    const res=await this.$http.get(uri.getreports)
    if(res.meta.status!==200){
        return this.$message.error('请求折线图数据失败')
    }
    // 使用lodash中的merge和并数据
   const resuil= _.merge(res.data,this.options)
    myChart.setOption(resuil);
  },

};
</script>

<style lang="less" scoped></style>
